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7a52ffabe8
Currently we have these two functions: pnv_pci_ioda2_release_dma_pe(), and pnv_pci_ioda2_release_pe_dma() The first is used when tearing down VF PEs and the other is used for normal devices. There's very little difference between the two though. The latter (non-VF) will skip a call to pnv_pci_ioda2_unset_window() unless CONFIG_IOMMU_API=y is set. There's no real point in doing this so fold the two together. Signed-off-by: Oliver O'Halloran <oohall@gmail.com> Reviewed-by: Alexey Kardashevskiy <aik@ozlabs.ru> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20200722065715.1432738-2-oohall@gmail.com
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.